Seagate Technology Holdings plc
DE ˙ XTRA ˙ IE00BKVD2N49
38,91 € ↓ -0,56 (-1,41%)
2017-05-15
DEL PRIS
SecurityDE:STT / Seagate Technology Holdings plc
InstitutionAufman Associates Inc
Latest Disclosed Ownership65,507 shares
Latest Disclosed Value $ 25,663,022
Aufman Associates Inc reports 0.08% decrease in ownership of STT / Seagate Technology Holdings plc

On May 15, 2026 - Aufman Associates Inc filed a 13F-HR form disclosing ownership of 65,507 shares of Seagate Technology Holdings plc (DE:STT) valued at $25,663,022 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 65,559 shares of Seagate Technology Holdings plc. This represents a change in shares of -0.08% during the quarter. The current value of the position is $2,548,877 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F Seagate Technology Holdings Stock G7997R103 65,507 -52 -0.08 25,663 42.15 12.5901
2026-02-11 2025-12-31 13F Seagate Technology Holdings Stock G7997R103 65,559 -4,833 -6.87 18,054 8.65 9.2527
2025-11-12 2025-09-30 13F Seagate Technology Holdings Stock G7997R103 70,392 -89 -0.13 16,617 63.35 9.3524
2025-08-13 2025-06-30 13F Seagate Technology Holdings Stock G7997R103 70,481 -13,118 -15.69 10,173 43.25 6.2733
2025-05-14 2025-03-31 13F Seagate Technology Holdings Stock G7997R103 83,599 -527 -0.63 7,102 -2.19 4.8824
2025-02-12 2024-12-31 13F Seagate Technology Holdings Stock G7997R103 84,126 -11,298 -11.84 7,261 -30.53 4.9017
2024-11-13 2024-09-30 13F Seagate Technology Holdings Stock G7997R103 95,424 -2,904 -2.95 10,452 2.92 6.7188
2024-08-09 2024-06-30 13F Seagate Technology Holdings Stock G7997R103 98,328 -2,121 -2.11 10,154 8.65 7.2281
2024-05-10 2024-03-31 13F Seagate Technology Holdings Stock G7997R103 100,449 -4,944 -4.69 9,347 3.88 6.5804
2024-02-14 2023-12-31 13F Seagate Technology Holdings Stock G7997R103 105,393 -1,022 -0.96 8,997 28.20 6.7904
2023-11-13 2023-09-30 13F Seagate Technology Holdings Stock G7997R103 106,415 -238 -0.22 7,018 6.37 5.8872
2023-08-11 2023-06-30 13F Seagate Technology Holdings Stock G7997R103 106,653 -253 -0.24 6,599 -6.65 5.4427
2023-05-10 2023-03-31 13F Seagate Technology Holdings Stock G7997R103 106,906 -427 -0.40 7,069 25.19 6.0162
2023-02-08 2022-12-31 13F Seagate Technology Holdings Stock G7997R103 107,333 -1,499 -1.38 5,647 -2.54 5.2193
2022-11-14 2022-09-30 13F Seagate Technology Holdings Stock G7997R103 108,832 -5,222 -4.58 5,793 -28.90 6.0970
2022-08-10 2022-06-30 13F Seagate Technology Holdings Stock G7997R103 114,054 -189 -0.17 8,148 -20.66 7.7466
2022-05-13 2022-03-31 13F Seagate Technology Holdings Stock G7997R103 114,243 -1,279 -1.11 10,270 -21.31 8.0904
2022-02-09 2021-12-31 13F Seagate Technology Holdings Stock G7997R103 115,522 -931 -0.80 13,052 35.82 9.6512
2021-11-12 2021-09-30 13F Seagate Technology Holdings Stock G7997R103 116,453 -233 -0.20 9,610 -6.34 7.9045
2021-08-11 2021-06-30 13F Seagate Technology Holdings Stock G7997R103 116,686 -140 -0.12 10,260 14.43 7.9129
2021-05-17 2021-03-31 13F Seagate Technology Stock G7945M107 116,826 -580 -0.49 8,966 22.86 7.4643
2021-02-10 2020-12-31 13F Seagate Technology Stock G7945M107 117,406 -70 -0.06 7,298 26.09 6.5476
2020-11-13 2020-09-30 13F Seagate Technology Stock G7945M107 117,476 -200 -0.17 5,788 1.60 6.2213
2020-08-13 2020-06-30 13F Seagate Technology Stock G7945M107 117,676 -114 -0.10 5,697 -0.89 6.4645
2020-05-13 2020-03-31 13F Seagate Technology Stock G7945M107 117,790 -31,133 -20.91 5,748 -35.13 7.9293
2020-02-06 2019-12-31 13F Seagate Technology Stock G7945M107 148,923 148,923 8,861 9.1223
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.